EP3630922A1 - Flüssigkristallines medium - Google Patents
Flüssigkristallines mediumInfo
- Publication number
- EP3630922A1 EP3630922A1 EP18728094.6A EP18728094A EP3630922A1 EP 3630922 A1 EP3630922 A1 EP 3630922A1 EP 18728094 A EP18728094 A EP 18728094A EP 3630922 A1 EP3630922 A1 EP 3630922A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compounds
- atoms
- medium
- liquid crystal
- alkyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 76
- 150000001875 compounds Chemical class 0.000 claims abstract description 75
- 125000004432 carbon atom Chemical group C* 0.000 claims description 26
- 125000000217 alkyl group Chemical group 0.000 claims description 23
- 125000003545 alkoxy group Chemical group 0.000 claims description 13
- 125000003342 alkenyl group Chemical group 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 125000004955 1,4-cyclohexylene group Chemical group [H]C1([H])C([H])([H])C([H])([*:1])C([H])([H])C([H])([H])C1([H])[*:2] 0.000 claims description 3
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 claims description 2
- 101150065749 Churc1 gene Proteins 0.000 claims description 2
- 102100038239 Protein Churchill Human genes 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000005352 clarification Methods 0.000 abstract 1
- -1 ethoxy, propoxy, butoxy, pentoxy, hexoxy Chemical group 0.000 description 78
- 239000000203 mixture Substances 0.000 description 38
- 239000012071 phase Substances 0.000 description 27
- 239000011159 matrix material Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 230000003287 optical effect Effects 0.000 description 10
- 239000004990 Smectic liquid crystal Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000004642 Polyimide Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 229920001721 polyimide Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000002019 doping agent Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 125000003302 alkenyloxy group Chemical group 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 2
- 230000003098 cholesteric effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- JOLGXBQYTARJLD-UHFFFAOYSA-N 1-ethyl-4-[4-(4-pentylcyclohexyl)phenyl]benzene Chemical compound C1CC(CCCCC)CCC1C1=CC=C(C=2C=CC(CC)=CC=2)C=C1 JOLGXBQYTARJLD-UHFFFAOYSA-N 0.000 description 1
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 description 1
- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- 125000005916 2-methylpentyl group Chemical group 0.000 description 1
- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 1
- 125000005917 3-methylpentyl group Chemical group 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 description 1
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 102100035593 POU domain, class 2, transcription factor 1 Human genes 0.000 description 1
- 101710084414 POU domain, class 2, transcription factor 1 Proteins 0.000 description 1
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 description 1
- 108700017836 Prophet of Pit-1 Proteins 0.000 description 1
- 241000620457 Telestes souffia Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004744 butyloxycarbonyl group Chemical group 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Chemical group 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 150000003983 crown ethers Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 101150047356 dec-1 gene Proteins 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- RBBNOVKRLWDEGC-UHFFFAOYSA-M dodecyl-ethyl-dimethylazanium;4-hexoxybenzoate Chemical compound CCCCCCOC1=CC=C(C([O-])=O)C=C1.CCCCCCCCCCCC[N+](C)(C)CC RBBNOVKRLWDEGC-UHFFFAOYSA-M 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 1
- 125000005745 ethoxymethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 description 1
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- VZUGBLTVBZJZOE-KRWDZBQOSA-N n-[3-[(4s)-2-amino-1,4-dimethyl-6-oxo-5h-pyrimidin-4-yl]phenyl]-5-chloropyrimidine-2-carboxamide Chemical compound N1=C(N)N(C)C(=O)C[C@@]1(C)C1=CC=CC(NC(=O)C=2N=CC(Cl)=CN=2)=C1 VZUGBLTVBZJZOE-KRWDZBQOSA-N 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001148 pentyloxycarbonyl group Chemical group 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004742 propyloxycarbonyl group Chemical group 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
- C09K19/18—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon triple bonds, e.g. tolans
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3066—Cyclohexane rings in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3441—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
- C09K19/345—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms
- C09K19/3455—Pyridazine
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3491—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
- C09K2019/0448—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
- C09K2019/0466—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the linking chain being a -CF2O- chain
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- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
- C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
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- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
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- C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
- C09K19/18—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon triple bonds, e.g. tolans
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- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
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- C09K19/3001—Cyclohexane rings
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- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
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- C09K19/3001—Cyclohexane rings
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
- C09K2019/3027—Compounds comprising 1,4-cyclohexylene and 2,3-difluoro-1,4-phenylene
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- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3028—Cyclohexane rings in which at least two rings are linked by a carbon chain containing carbon to carbon single bonds
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- C09K19/3059—Cyclohexane rings in which at least two rings are linked by a carbon chain containing carbon to carbon triple bonds
- C09K2019/3063—Cy-Ph-C≡C-Ph
Definitions
- the present invention relates to a liquid-crystalline medium and its use for electro-optical purposes, in particular for
- Liquid crystal light valves for use in vehicle lighting devices liquid crystal light valves containing this medium, and lighting devices based on such liquid crystal light valves.
- Liquid crystals are mainly used as dielectrics in display devices, since the optical properties of such substances can be influenced by an applied voltage. electro-optical
- TN cells with twisted nematic structure or STN cells ("super-twisted nematic").
- STN cells super-twisted nematic
- Modern TN and STN displays are based on an active matrix of individually addressable liquid crystal light valves (the pixels) with integrated red, green and blue color filters for additive generation of the color images.
- a spatial light modulator in the form of a liquid crystal (LCD) display panel consisting of a grid of translucent elements, analogous to the pixels of a
- Liquid crystal display an electrically switchable, full or partial shading of the light cone generated with the aim of the driver
- Vehicle lights of the projector type preferably delivers a digital camera.
- a liquid crystal light valve according to the present invention may comprise a single area for modulating the light or a grid (matrix) of a plurality of identical or different sub-areas
- the surface or subarea may be transmissive or reflective, so a grid of liquid crystal light valves may be a special case of a monochrome matrix liquid crystal display or may be considered as part of such trained embodiment includes the
- Lighting device one or more
- Liquid crystal light valves of the liquid crystal display type Liquid crystal light valves of the liquid crystal display type.
- Lighting device one or more
- Liquid crystal valves from LCoS Liquid-Crystal-on-Silicon
- An illumination device within the meaning of the invention is in particular an AFS or part of an AFS.
- a lighting device according to the invention is used in particular for illuminating an area in front of a vehicle or motor vehicle.
- Means of locomotion such as, but not limited to,
- Aircraft, ships, and land vehicles such as automobiles, motorcycles and bicycles, as well as rail-bound land vehicles such as e.g.
- Motor vehicle in the sense of the invention is in particular a land vehicle which can be used individually in road traffic. Motor vehicles within the meaning of the invention are in particular not on land vehicles
- Liquid crystal light valve is a TN cell as optical
- Used modulation element which represents picture elements according to the desired brightness profile of the vehicle lighting, for example, a driving voltage to the TN liquid crystal for modulation (control) of the transmittance of a picture element is applied. Because of the polarizers required there, only about half of the light from the light source can be used. A likewise based on a TN cell alternative, which makes it possible to harness more than half of the light of the light source of the illumination device is disclosed in DE 10 2013 1 13 807 A1. Therein, the light is divided by means of a polarizing beam splitter into two sub-beams with mutually perpendicular polarization plane and directed by two separate, separately switchable liquid crystal elements.
- Such lighting devices are characterized by comparatively high operating temperatures of typically 60-80 ° C, which makes special demands on the liquid crystal media used: the clearing points must be higher than 120 ° C, preferably higher than 140 ° C and because of the strong light exposure, these media have a particularly high light stability. This may possibly be favored, for example, by using materials with the least possible birefringence.
- the liquid crystal materials must also have good chemical and thermal stability and good electrical field stability. Furthermore, the liquid crystal materials should have low viscosity and give relatively short response times, lowest possible operating voltages and high contrast in the cells.
- liquid crystals are usually used as mixtures of several components, it is important that the
- materials for cells of twisted nematic structure should have positive dielectric anisotropy and low electrical conductivity.
- MFK displays matrix liquid crystal displays with integrated non-linear elements for switching individual pixels
- Such matrix liquid crystal displays are known and the design principle can also be used for the lighting device according to the invention.
- pixels may be used for active elements (i.e., transistors).
- active elements i.e., transistors.
- MOS Metal Oxide Semiconductor
- other diodes on silicon wafer as a substrate.
- TFT Thin-film transistors
- TFTs made of compound semiconductors, such as e.g. CdSe or TFTs based on polycrystalline or amorphous silicon. The latter technology is being worked on worldwide with great intensity.
- the TFT matrix is applied on the inside of one glass plate of the display, while the other glass plate on the inside carries the transparent counter electrode. Compared to the size of the
- the TFT is very small and does not disturb the picture practically.
- the TFT displays and corresponding light valves for
- Illuminators usually operate as TN cells with crossed polarizers in transmission and are backlit.
- MFK displays here includes any matrix display with integrated nonlinear elements, i.
- MIM varistors or diodes
- MIM metal-insulator-metal
- Liquid crystal mixtures [TOGASHI, S., SEKOGUCHI, K., TANABE, H., YAMAMOTO, E., SORIMACHI, K., TAJIMA, E., WATANABE, H., SHIMIZU, H., Proc. Eurodisplay 84, Sept. 1984: A 210-288 Matrix LCD Controlled by Double Stage Diode Rings, p. 141 ff, Paris; STROMER, M., Proc.
- Liquid crystal mixtures with very high resistivity at the same time large working temperature range and high light stability are desired which allow the following advantages in the cells:
- Orientation layers of polyimide are usually provided for the orientation of the above-mentioned liquid-crystalline media. These can be a source of contamination, resulting in
- inorganic alignment layers see, for example, H.K. Baik et al., Langmuir 2005, 21, 1 1079-1 1084; J.B. Kim et al., Adv. Mater., 2008, 20, 3073-3078. Displays with such orientation layers have a homeotropic orientation of the liquid crystal molecules and are therefore based on liquid-crystalline media with negative dielectric anisotropy.
- Liquid-crystalline media with negative dielectric anisotropy are known, in particular, from use in electro-optical displays with active-matrix addressing based on the ECB effect.
- Liquid-crystalline media which are particularly suitable for lighting devices for vehicles are disclosed, for example, in DE 10201601 1899 A1. These have a positive dielectric anisotropy and are therefore unsuitable for inorganic alignment layers that induce homeotropic orientation.
- the invention is based on the object media with negative
- Liquid crystal light valves for lighting devices for vehicles to provide the above-mentioned disadvantages, or only in have smaller dimensions, and preferably at the same time have very high clearing points and low birefringence.
- the invention relates to a liquid-crystalline medium containing, in a total concentration of 65% more, one or more
- R 1 C and R 2 are each independently H, one
- an alkyl or alkenyl radical having up to 15 carbon atoms which is monosubstituted by CN or CF 3 or at least simply by halogen, where one or more CH groups are also present in these radicals
- -CF 2 O-, -OCF 2 -, -OC-O- or -O-CO- can be replaced so that O atoms are not directly linked together, each independently H or alkyl having 1 to 4 carbon atoms preferably H or methyl, particularly preferably H, a) 1,4-cyclohexylene or 1,4-cyclohexenylene, in which one or two nonadjacent CH 2 groups may be replaced by -O- or -S-, b) 1, 4-phenylene, wherein one or two CH groups may be replaced by N and wherein one or more H atoms may be replaced by F or Cl, L 1 to L 12 are each independently F, CF 3 , CHF 2 or
- Z 1 , Z 1 and Z 2 are each independently one
- (O) is a single bond or -O-, wherein the clearing point of the medium is 120 ° C or more.
- all atoms also include their isotopes.
- one or more hydrogen atoms (H) be replaced by deuterium (D), which is particularly preferred in some embodiments; a high degree of deuteration allows or facilitates the analytical detection of compounds, especially in the case of low concentrations.
- a radical is an alkyl radical and / or an alkoxy radical, this may be straight-chain or branched. Preferably, it is straight-chain, has 2, 3, 4, 5, 6 or 7 carbon atoms and thus preferably ethyl, propyl, butyl, pentyl, hexyl, heptyl, ethoxy, propoxy, butoxy, pentoxy, hexoxy or heptoxy, furthermore methyl , Octyl, nonyl, decyl, undecyl,
- Methoxyethyl 2-, 3- or 4-oxypentyl, 2-, 3-, 4- or 5-oxyhexyl, 2-, 3-, 4-, 5- or 6-oxyheptyl, 2-, 3-, 4- , 5-, 6-, or 7-Oxaoctyl, 2-, 3-, 4-, 5-, 6-, 7- or 8-oxanonyl, 2-, 3-, 4-, 5-, 6-, 7 , 8- or 9-oxadexyl.
- It is preferably straight-chain and has 2 to 10 C atoms. Accordingly, it particularly denotes vinyl, prop-1 -, or prop-2-enyl, but-1 -, 2- or but-3-enyl, pent-1 -, 2-, 3- or pent-4-enyl, hex 1-, 2-, 3-, 4- or hex-5-enyl, hept-1, 2-, 3-, 4-, 5- or hept-6-enyl, Oct-1 -, 2-, 3-, 4-, 5-, 6- or
- Oct-7-enyl non-1, 2, 3, 4, 5, 6, 7 or 8-enyl, Dec-1, 2, 3, 4, 5 -, 6-, 7-, 8- or dec-9-enyl.
- a radical is an alkyl radical in which one CH 2 group has been replaced by -O- and one by -CO-, these are preferably adjacent. Thus, they include an acyloxy group -CO-O- or an oxycarbonyl group -O-CO-. Preferably, these are straight-chain and have 2 to 7 carbon atoms.
- Ethoxycarbonylmethyl propoxycarbonylmethyl, butoxycarbonylmethyl, 2- (methoxycarbonyl) ethyl, 2- (ethoxycarbonyl) ethyl, 2- (propoxycarbonyl) ethyl, 3- (methoxycarbonyl) -propyl, 3- (ethoxycarbonyl) -propyl or
- acryloyloxymethyl 2-acryloyl-oxyethyl, 3-acryloyloxypropyl, 4-acryloyloxybutyl, 5-acryloyloxypentyl, 6-acryloyloxyhexyl, 7-acryloyloxyheptyl, 8-acryloyloxyoctyl, 9-acryloyl-oxynonyl, 10-acryloyloxydecyl,
- Methacryloyloxymethyl 2-methacryloyl-oxyethyl, 3-methacryloyloxypropyl, 4-methacryloyloxybutyl, 5-methacrylo-oxypentyl, 6-methacryloyloxyhexyl, 7-methacryloyloxyheptyl, 8-methacryloyloxyoctyl, 9-methacryloyloxynonyl.
- a radical is an alkyl or alkenyl radical which is monosubstituted by CN or CF 3 , this radical is preferably straight-chain. The substitution by CN or CF 3 is in any position.
- R is an alkyl or alkenyl radical which is at least monosubstituted by halogen
- this radical is preferably straight-chain and halogen is preferably F or Cl. In the case of multiple substitution, halogen is preferably F.
- the resulting radicals also include perfluorinated ones
- the fluoro or chloro substituent may be in any position, but preferably in the co-position.
- Compounds with branched wing groups R can occasionally because of better solubility in the usual liquid-crystalline
- Smectic compounds of this type are useful as components of ferroelectric materials.
- Branched groups of this type usually contain no more than one chain branch.
- a radical is an alkyl radical in which two or more CH 2 groups have been replaced by -O- and / or -CO-O-, this may be straight-chain or branched. Preferably, it is branched and has 3 to 12 carbon atoms.
- alkyl and alkyl * each independently represent a straight-chain alkyl radical having 1-7 C atoms mean in which a CH 2 group by can be replaced, and
- (O) is -O- or a single bond.
- Particularly preferred media according to the invention contain one or more compounds of the formulas IA-2, IA-8, IA-14, IA-26,
- the medium according to the invention contains one or more compounds selected from the group of the compounds IA-8-1 to IA-8-10
- the compounds of the formula II are preferably selected from the group of the compounds of the formulas
- alkyl and alkyl * each independently a straight-chain
- Alkyl radical having 1 -7 C atoms, in which a CH 2 -
- L 11 and L 12 have the meaning given above.
- L 11 and L 12 are both F.
- Particularly preferred compounds of the formula II are selected from the group of the compounds of the formula II-3a
- alkoxy and alkoxy * is unbranched alkoxy having 1 to 7 carbon atoms.
- the medium according to the invention additionally contains one or more compounds of the formulas III-III to III-9,
- R 3 independently of one another has one of the meanings given under formula IA for R, and w and x are each independently of one another 1 to 7, (O) is a single bond or -O-.
- R 3 is unbranched alkyl having 1 to 7 carbon atoms.
- the medium according to the invention preferably contains one or more compounds selected from the group of the compounds of the formulas IV-1 to IV-15
- R 41 and R 42 have the meanings given for R 1A .
- R 41 and R 42 each independently represent straight-chain alkyl or alkenyl having 1 to 7 C atoms, alternatively R 42 also alkoxy having 1 to 7 C atoms.
- the medium preferably contains one or more compounds of the formula IV-10.
- R 51 and R 52 each independently represent straight-chain alkyl or alkenyl having up to 7 C atoms, R 52 alternatively alkoxy having 1 to 7 C atoms.
- Another object of the invention are electro-optical components, in particular light valves, based on the ECB effect, with two plane-parallel support plates, which form a cell with a border, integrated non-linear elements for switching individual pixels on the carrier plates and one located in the cell nematic
- Liquid crystal mixture with negative dielectric anisotropy and high resistivity containing the media of the invention and the use of these media for electro-optical purposes.
- Another object of the invention is the use of
- Lighting equipment for vehicles and in liquid crystal displays in particular VA, IPS and FFS displays.
- Another object of the invention are lighting devices for vehicles and electro-optical displays containing these components.
- the construction of the light valves according to the invention comprising polarizers, electrode base plates and electrodes with surface treatment speaks the usual for such components construction.
- the term of the usual construction is broad and includes all modifications and modifications of the components, in particular also matrix display elements based on poly-Si TFT or MIM.
- An illumination device for vehicles has at least one light source. Light is emitted from this light source so that at least one diaphragm device is provided for influencing the light emitted by the light source.
- Aperture device is designed as an LCD panel and has
- At least one liquid crystal light valve which can be transilluminated from behind.
- Liquid crystal displays used cold cathode lamps (CCFL).
- the individual bulbs can be different, z. B. in a matrix-like manner, be arranged.
- one or more arrangements of further optical components can bring advantages in the light source or in the illumination device. It may be z. B. to one or more reflectors or one or more lenses. It is also advantageous if, in an inventive
- the liquid crystal light valve a first
- Polarizer through which the light provided by the light source penetrates has. Further, a second polarizer is provided, through which the light leaves the liquid crystal light valve. Between the first polarizer and the second polarizer, a layer containing the liquid crystal medium according to the invention is arranged.
- Liquid crystal layer serves to rotate the plane of polarization of the light passing through this liquid crystal layer in response to an applied voltage.
- this liquid crystal layer in the electrical Field cause a rotation of the polarization of the light or omission of this rotational function of the transmitted light.
- the liquid crystal light valve and in particular the first polarizer temperature resistant to about 200 ° C is formed. This is particularly important in the case of the first polarizer, since it absorbs up to approximately 50% of the light emitted by the light source and the associated energy.
- Liquid crystal displays used and are known in the art. Basically, all known configurations are suitable and preference is given to liquid crystal valves of the VA, IPS or FFS type, particularly preferably of the VA type.
- liquid-crystal mixtures according to the invention enable a significant expansion of the available parameter space.
- the liquid-crystal mixtures according to the invention make it advantageously possible, while maintaining the nematic phase to -20 ° C and preferably to -30 ° C, more preferably -40 ° C, a clearing point of 120 ° C or more, preferably 130 ° C or more , more preferably from 135 ° C or more, and most preferably from 140 ° C or more.
- the nematic phase range is preferably at least 140 K, particularly preferably at least 160 K, in particular at least 180 K. This range preferably extends at least from -40 ° to + 140 °.
- the lower limit of the nematic phase range is the temperature at which, upon cooling from the nematic phase, a transition from the nematic phase to another liquid-crystalline phase,
- a smectic phase for example, a smectic phase, or crystallization occurs. This is in the mixtures according to the invention at ⁇ -20 ° C, preferably at ⁇ -30 ° C, particularly preferably at ⁇ -40 ° C.
- the upper limit of the nematic phase range is the temperature at which, upon heating from the nematic phase, a transition from the nematic phase to the isotropic liquid phase is observed
- liquid-crystal mixtures according to the invention have a
- dielectric anisotropy ⁇ of -2.0 or less, preferably -3.0 or less, and more preferably -4.0 or less.
- liquid-crystal mixtures according to the invention have a
- dielectric anisotropy ⁇ in the range from -2.5 to -8.0, preferably from -3.5 to -7.0, particularly preferably from -4.0 to -6.0.
- liquid-crystal mixtures according to the invention make it possible to achieve a high value for the specific resistance, whereby excellent light valves according to the invention can be achieved.
- the mixtures are characterized by low operating voltages.
- the liquid-crystal mixtures according to the invention have an optical anisotropy ( ⁇ ) in the range from 0.050 to 0.200, preferably from 0.080 to 0.190, particularly preferably from 0.100 to 0.180.
- the rotational viscosity ⁇ of the mixtures according to the invention at 20 ° C is preferably ⁇ 350 rnPa-s, more preferably ⁇ 300 rnPa-s.
- Embodiments are preferred by themselves or in combination with each other.
- the medium contains one or more compounds selected from the group of the compounds of the formulas IA, IB, IC, ID and II in a total concentration in the range from 65% to 90%, preferably from 68% to 85%, very particularly preferably from 70 % to 80%.
- the medium contains one or more compounds selected from the group of the compounds of the formulas IA, IB, IC, ID and II and IV-2 to IV-8 and V-1 to V-4 in a total concentration in the range of 80% to 100%, preferably from 85% to 98%, most preferably from 90% to 95%.
- the medium contains one or more compounds of the formula IV-1 in a total concentration of more than 0% to 20%, preferably in the range of 0.5% to 18%, particularly preferably in the range of 2% to 16%.
- the medium contains no compound IV-1 or IV-9.
- the medium contains one or more compounds of formula IV-1 in a total concentration of 20% or less, preferably 16% or less, more preferably 10% or less and most preferably 5% or less.
- the medium contains one or more compounds of the formula IV-1 and / or IV-9 in a total concentration of 20% or less, preferably 16% or less, more preferably 10% or less and most preferably 5% or fewer.
- the medium contains one or more compounds CC-n-V,
- the medium contains one or more compounds selected from the compounds of the group CCH-nm, CC-n-Vm and CC-n-mV1 in a total concentration of 5% or less, preferably 3% or less and most preferably 1% or less, in particular in the range of 0.01% to 0.5%.
- the medium contains one or more compounds of the formula IA-2 in a total concentration of more than 0% to 30%, preferably in the range of 0.5% to 25%, particularly preferably in the range of 5% to 20%.
- the medium contains one or more compounds selected from the group of the compounds of the formulas IA-2 and IV-1 in a total concentration in the range of 5% to 40%, preferably in the range of 7% to 35%, particularly preferably in the range of 10 % to 30%.
- the medium contains one, two or more compounds of the formula II-3a, particularly preferably the compounds B (S) -2O-O4 and B (S) -2O-O5 in a total concentration of 5% to 25%, preferably of 10% to 20%, more preferably from 12% to 16%.
- the medium contains two or more compounds of the formula IC-1 in a total concentration of 20% or more.
- the medium contains one or more compounds selected from the group of the compounds of the formulas V-1, V-2, V-3 and V-4, preferably V-3 and V-4, in a total concentration in the range from 8% to 25 %.
- the medium contains two, three or more compounds of formula V-3 in a total concentration ranging from 5% to 20%, more preferably from 7% to 15%, most preferably from 9% to 12%.
- the medium contains two, three or more compounds of formula V-4 in a total concentration ranging from 5% to 20%, more preferably from 7% to 12%, most preferably from 8% to 10%.
- the medium contains two, three or more compounds selected from the group of the compounds of the formula IA-8 and two, three, four or more compounds selected from the group of the compounds of the formulas V-3 and V-4.
- the medium contains one or more compounds of the formulas IV-14 and / or IV-15 in a total concentration in the range from 2% to 20%, more preferably from 5% to 15%, most preferably from 8% to 10%.
- the desired amount of components used in lesser amounts in the components constituting the main component are dissolved, expediently at elevated temperature.
- the dielectrics may also contain further additives known to the person skilled in the art and described in the literature. For example, 0-15% pleochroic dyes or chiral dopants may be added.
- K is a crystalline
- S is a smectic
- S c is a smectic C
- N is a nematic
- I is the isotropic phase.
- V10 denotes the voltage for 10% transmission (viewing direction perpendicular to the plate surface).
- t on denotes the switch-on time and t 0 ff the switch-off time at an operating voltage corresponding to 2.0 times the value of Vi 0 .
- ⁇ denotes the optical anisotropy and n 0 den
- the electro-optical data were in a TN cell in the 1st Minimum (i.e., at a d ⁇ ⁇ value of 0.5) measured at 20 ° C, unless expressly stated otherwise.
- the optical data were at 20 ° C
- the Cyclohexylenhngen are trans-1, 4-Cyclohexylen- rings.
- (O) alkyl or (O) -alkyl or (O) alkyl * or (O) -alkyl * mean either OAlkyl (alkoxy) or alkyl or OAlkyl * (alkoxy * ) or alkyl * .
- Patent application (O) alkenyl or (O) -alkenyl or (O) alkenyl * or (O) -alkenyl * either OAlkenyl (alkenyloxy) or alkenyl or OAlkenyl * (alkenyloxy * ) or alkenyl * .
- the structures of the liquid crystal compounds are indicated by acronyms. Unless otherwise stated, transformation into chemical formulas according to Tables 1-3 takes place.
- All radicals C n H 2n + i, C m H 2m + i , and C m 'H 2m ' + i or C n H 2n and C m H 2m are straight-chain alkyl radicals or alkylene radicals in each case with n, m, m 'or z C atoms.
- n, m, m ', z are each independently 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, preferably 1, 2, 3, 4, 5 or 6.
- Table 1 the ring members of each compound are coded
- Table 2 lists the bridge members
- Table 3 shows the meanings of the symbols for the left and right side chains of the compounds, respectively.
- the mixtures according to the invention contain, in addition to one or more compounds selected from the group of
- liquid-crystalline media according to the invention preferably comprise one or more compounds of Table A.
- the media may also other, known in the art and described in the literature additives such.
- UV absorbers antioxidants, nanoparticles, radical scavengers included.
- Suitable stabilizers for the mixtures according to the invention are in particular those listed in Table B.
- pleochroic dyes may be added, furthermore conductive salts, preferably ethyldimethyldodecylammonium-4-hexoxybenzoate, tetrabutylammonium tetraphenylboranate or complex salts of crown ethers (cf., for example, Haller et al., Mol 24, pages 249-258 (1973)) for improving the conductivity or substances for changing the dielectric anisotropy, the viscosity and / or the orientation of the nematic phases.
- conductive salts preferably ethyldimethyldodecylammonium-4-hexoxybenzoate, tetrabutylammonium tetraphenylboranate or complex salts of crown ethers (cf., for example, Haller et al., Mol 24, pages 249-258 (1973)) for improving the conductivity or substances for changing the dielectric anisotropy, the viscosity and
- Table B lists possible dopants which can be added to the mixtures according to the invention. If the mixtures contain a dopant, it is added in amounts of 0.01-4% by weight, preferably 0.01-3% by weight.
- Stabilizers which may be added, for example, to the mixtures according to the invention in amounts of 0-10% by weight, preferably 0.001-5% by weight, in particular 0.001-1% by weight, are mentioned below.
- F. is the melting point and K is the clearing point of a liquid crystalline substance in degrees Celsius;
- Boiling temperatures are designated by Kp. It also means:
- K crystalline solid state
- S smectic phase (the index denotes the phase type)
- N nematic state
- Ch cholesteric phase
- I isotropic phase
- T g glass transition temperature. The number between two symbols indicates the transformation temperature in degrees Celsius.
- the host mixture used to determine the optical anisotropy ⁇ of the compounds of the formulas IA is the commercial mixture ZLI-4792 (from Merck KGaA).
- ZLI-4792 from Merck KGaA
- the compound used to obtain the physical data of the compound to be tested is usually 10% in the
- temperatures such as the melting point T (C, N), the transition from the smectic (S) to the nematic (N) phase T (S, N) and the clearing point T (N, I), in degrees Celsius (° C). Mp.
- threshold voltage for the present invention refers to the capacitive threshold (V 0 ), also called the Freedericksz threshold, unless explicitly stated otherwise In the examples, as is generally customary, the optical threshold for 10% relative contrast (Vi 0 ).
- the display used to measure the capacitive threshold voltage consists of two plane-parallel glass carrier plates at a distance of 20 Dm, which on the inner sides in each case an electrode layer and an overlying, non-oriented orientation layer of polyimide
- the display or test cell used for measuring the tilt angle consists of two plane-parallel glass carrier plates at a distance of 4 Dm, which on the inner sides in each case an electrode layer and a
- the polymerizable compounds are polymerized in the display or test cell by irradiation with UVA light (usually 365 nm) of a defined intensity for a predetermined time, at the same time a voltage is applied to the display (usually 10 V to 30 V AC, 1 kHz ). In the examples, if not otherwise
- a mercury vapor lamp at 50 mW / cm 2 is used, the intensity with a standard UV meter (manufactured by Ushio UNI meter) equipped with a band pass filter at 365nm.
- the tilt angle is determined by rotary crystal experiment (Autron ic-Melcher's TBA-105). A low value (ie a large deviation from the 90 ° angle) corresponds to a large tilt.
- the VHR value is measured as follows: 0.3% of a polymerizable monomeric compound is added to the FK-host mixture and the resulting mixture is filled into TN-VHR test cells (90 ° rubbed, orientation layer TN-polyimide, layer thickness d «6 ⁇ ).
- the HR value is determined after 5 min at 100 ° C. before and after 2 h UV exposure (sun test) at 1 V, 60 Hz, 64 s pulse (measuring device: Autronic-Melchers VHRM-105).
- LTS low temperature stability
- Anisotropie are due to the surprisingly high clearing points and excellent LTS particularly suitable for light valves for
- Lighting devices for motor vehicles which have at least one homeotropic orientation layer, and VA displays.
- Example M1 1 consists of 91, 84% of the medium of Example M10, 8.0% of the reactive mesogen RM-1 and 0.16% of the photoinitiator Irgacure 907 ®. This medium is particularly suitable for the production of light valves of the PDLC type.
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- Liquid Crystal Substances (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102017005413 | 2017-05-30 | ||
PCT/EP2018/063868 WO2018219841A1 (de) | 2017-05-30 | 2018-05-28 | Flüssigkristallines medium |
Publications (2)
Publication Number | Publication Date |
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EP3630922A1 true EP3630922A1 (de) | 2020-04-08 |
EP3630922B1 EP3630922B1 (de) | 2022-11-16 |
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EP18728094.6A Active EP3630922B1 (de) | 2017-05-30 | 2018-05-28 | Flüssigkristallines medium |
Country Status (8)
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US (1) | US20210139777A1 (de) |
EP (1) | EP3630922B1 (de) |
JP (1) | JP2020521859A (de) |
KR (1) | KR20200015909A (de) |
CN (1) | CN110662819B (de) |
DE (1) | DE102018003787A1 (de) |
TW (1) | TW201903131A (de) |
WO (1) | WO2018219841A1 (de) |
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WO2019014154A1 (en) * | 2017-07-08 | 2019-01-17 | Nimbus Robotics, Inc. | METHOD AND DEVICE FOR CONTROLLING A DISPLACEMENT ASSISTING DEVICE |
JP7202934B2 (ja) * | 2019-03-15 | 2023-01-12 | スタンレー電気株式会社 | 液晶素子、照明装置 |
CN113667491B (zh) * | 2021-09-01 | 2024-01-19 | 重庆汉朗精工科技有限公司 | 具有负介电各向异性的液晶组合物和应用 |
EP4384869A2 (de) * | 2021-09-03 | 2024-06-19 | The Regents Of The University Of Colorado, A Body Corporate | Mischung mit ferroelektrischer nematischer phase und verfahren zur herstellung und verwendung davon |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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BE795849A (fr) | 1972-02-26 | 1973-08-23 | Merck Patent Gmbh | Phases nematiques modifiees |
US3814700A (en) | 1972-08-03 | 1974-06-04 | Ibm | Method for controllably varying the electrical properties of nematic liquids and dopants therefor |
DE2450088A1 (de) | 1974-10-22 | 1976-04-29 | Merck Patent Gmbh | Biphenylester |
DE2637430A1 (de) | 1976-08-20 | 1978-02-23 | Merck Patent Gmbh | Fluessigkristallines dielektrikum |
DE2853728A1 (de) | 1978-12-13 | 1980-07-17 | Merck Patent Gmbh | Fluessigkristalline carbonsaeureester, verfahren zu ihrer herstellung, diese enthaltende dielektrika und elektrooptisches anzeigeelement |
JPH01244934A (ja) | 1988-03-28 | 1989-09-29 | Nissan Motor Co Ltd | 車両用前照灯装置 |
DE19910004A1 (de) | 1999-03-08 | 2000-09-21 | Oezsoy Fazil | Abblendvorrichtung für Kfz-Scheinwerfer |
EP2508588B1 (de) * | 2011-04-07 | 2015-02-11 | Merck Patent GmbH | Flüssigkristallines Medium und Flüssigkristallanzeige |
US9074132B2 (en) * | 2011-11-28 | 2015-07-07 | Jnc Corporation | Liquid crystal composition and liquid crystal display device |
KR101738906B1 (ko) * | 2011-12-21 | 2017-05-23 | 디아이씨 가부시끼가이샤 | 네마틱 액정 조성물 및 이것을 사용한 액정 표시 소자 |
KR102006209B1 (ko) * | 2012-07-04 | 2019-08-01 | 디아이씨 가부시끼가이샤 | 네마틱 액정 조성물 및 이를 사용한 액정 표시 소자 |
DE102013113807A1 (de) | 2013-12-11 | 2015-06-11 | Hella Kgaa Hueck & Co. | Beleuchtungseinrichtung für ein Kraftfahrzeug |
JP6862181B2 (ja) * | 2013-12-19 | 2021-04-21 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングMerck Patent Gesellschaft mit beschraenkter Haftung | 光の通過を制御するためのデバイス |
EP2937342B1 (de) * | 2014-04-22 | 2016-11-30 | Merck Patent GmbH | 4,6-difluor-dibenzothiophen-derivate |
EP2957618B1 (de) * | 2014-06-17 | 2018-08-01 | Merck Patent GmbH | Flüssigkristallines medium |
CN118421329A (zh) * | 2015-03-13 | 2024-08-02 | 默克专利股份有限公司 | 液晶介质 |
CN107849457B (zh) * | 2015-07-23 | 2021-11-30 | 捷恩智株式会社 | 液晶组合物及液晶显示元件 |
CN108350359B (zh) | 2015-10-27 | 2022-07-08 | 默克专利股份有限公司 | 液晶介质 |
-
2018
- 2018-05-09 DE DE102018003787.9A patent/DE102018003787A1/de active Pending
- 2018-05-28 US US16/618,653 patent/US20210139777A1/en not_active Abandoned
- 2018-05-28 CN CN201880034983.7A patent/CN110662819B/zh active Active
- 2018-05-28 EP EP18728094.6A patent/EP3630922B1/de active Active
- 2018-05-28 WO PCT/EP2018/063868 patent/WO2018219841A1/de active Application Filing
- 2018-05-28 JP JP2019566202A patent/JP2020521859A/ja active Pending
- 2018-05-28 KR KR1020197038095A patent/KR20200015909A/ko unknown
- 2018-05-29 TW TW107118213A patent/TW201903131A/zh unknown
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CN110662819B (zh) | 2023-05-12 |
JP2020521859A (ja) | 2020-07-27 |
DE102018003787A1 (de) | 2018-12-06 |
CN110662819A (zh) | 2020-01-07 |
EP3630922B1 (de) | 2022-11-16 |
TW201903131A (zh) | 2019-01-16 |
KR20200015909A (ko) | 2020-02-13 |
WO2018219841A1 (de) | 2018-12-06 |
US20210139777A1 (en) | 2021-05-13 |
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